Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2011-05-03
2011-05-03
Koch, III, George R (Department: 1745)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S094000, C156S098000, C264S036100, C264S036220
Reexamination Certificate
active
07935200
ABSTRACT:
A protocol for determining process parameters for debulking composite laminates is established using a standardized double vacuum debulk (DVD) process. This allows for the development of a rapid fabrication process for thick laminates of toughened carbon/epoxy composite materials. The protocol provides for obtaining cure and current consolidation information of a composite material system as a preliminary baseline. A test matrix is prepared for varying time/temp profiles to pursue better results or find process limits and the testing defined by the matrix is run with variations of time/temp DVD profiles to confirm data values. Results for the process variations in the test matrix are then assessed. An optimum consolidation is determined and process points are defined at which quality drops off. The protocol results are then applied to part preparation for the material tested.
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Keller Russell L.
Spalding John F.
Fischer Felix L.
Koch, III George R
The Boeing Company
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